cIsnsRegFcPortFcNodeWwn 1.3.6.1.4.1.9.10.116.1.1.7.5.1.1.15

The FC Node WWN of the FC Node that has been associated with this FC Port as defined in the iSNS Specification [iSNS]. This managed object may contain the value of zero prior to a device registering this value with the iSNS Server.